NaturesPlus Cal/Mag Citrate supplement bottle
NaturesPlus

Cal/Mag Citrate Review

What We Researched
3 active ingredients analyzed · 6 inactive ingredients decoded · Last updated: Aug 2026
95
Product Score Excellent
58
Brand Score Poor

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Calcium (as citrate/complex) 500 mg 38%
Magnesium (as citrate/complex) 250 mg 60%
Boron (as citrate) 3 mg
Bioavailability Very Good

Absorption Rating

  • Calcium (as citrate/complex) Good
  • Magnesium (as citrate/complex) Good
  • Boron (as citrate) Fair
Other Ingredients Excellent

Fillers & Additives

  • Calcium Carbonate
  • Magnesium Oxide
  • Vegetable Cellulose
  • Microcrystalline Cellulose
  • Magnesium Stearate
  • Purified Water
Efficacy Excellent

Dosage Analysis

  • Calcium (as citrate/complex) 500 mg Effective
  • Magnesium (as citrate/complex) 250 mg Effective
  • Boron (as citrate) 3 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Calcium (as citrate/complex) 500 mg 38%
Magnesium (as citrate/complex) 250 mg 60%
Boron (as citrate) 3 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Calcium Carbonate Safe

Acts as a filler and provides supplemental calcium.

Magnesium Oxide Generally_safe

It is used to provide magnesium, an essential mineral.

Vegetable Cellulose Safe

Forms a vegetarian capsule shell alternative to gelatin.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Purified Water Safe

Dissolves and carries water-soluble ingredients.

Brand Trust Report
NaturesPlus

Founded 1972 · Melville, New York, United States · 534 products · naturesplus.com

Transparency

3 claims
Third Party Testing Claim — Claimed
In House Testing — Claimed

Violation History

1 incident
Recall Keto Living Sugar Control Capsules2022-05-06Source
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Frequently Asked Questions
Is NaturesPlus Cal/Mag Citrate a good supplement?

NaturesPlus Cal/Mag Citrate received a product quality score of 95/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 3 active ingredients with 30 servings per container. Of the 6 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, NaturesPlus, holds a brand trust score of 58/100.

What are the ingredients in NaturesPlus Cal/Mag Citrate?

NaturesPlus Cal/Mag Citrate contains 3 active ingredients: Calcium (as citrate/complex) (500 mg), Magnesium (as citrate/complex) (250 mg), Boron (as citrate) (3 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NaturesPlus Cal/Mag Citrate safe to take?

NaturesPlus Cal/Mag Citrate has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is NaturesPlus a trustworthy supplement brand?

NaturesPlus receives a brand trust score of 58/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1972 and headquartered in Melville, New York, United States, the company offers 534 products in their lineup. Note: NaturesPlus has 1 historical regulatory incident on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.